Nude Turntable Project


I could not fit the whole story in this Forum so have had to add it to my System Page.
I am attempting to hear if a 'naked' DD turntable can sound as good as Raul claims.
Please click the link below to read the story.
NUDE TT81
halcro

Showing 29 responses by ct0517


Nandric
Besides without the notion of an 'base' one get confused
regarding what is 'above' and what 'below' so some of us
even used the copper mat to put not 'obove' the platter but
under the 'nacked TT' with some strange results.

I am sure you are aware Nikola of the different meanings for the word “nacked” ?

Hello everyone and especially Halcro and Raul.

Raul for your continuing posts to try out going plinthless (against what is the norm to use a plinth) and Halcro for your excellent experiment and what ultimately convinced me to try it on my Technics Sp10 Mk II.

My sp10 was in a 7 layer birch plinth with two arms - ET2.5 and VPI 12. I have three cartridges - Dynavector XV1, Clearaudio Virtuoso and a Benz Micro MC-3 cartridge.

I was very happy with the sound and was looking at getting another plinth as a next step. I gave the plinthless set up a try since it cost very little to experiment with. I was not expecting what I heard when I went plinthless with the ET 2.5 arm using the the Benz Micro MC-3. I won't go into subjective words reviewers use. All I can say is less distortion, very neutral sound. A big improvement.

I constructed a pod for my ET arm out of a block of steel 4 x 6 that weighs 18 lbs and sits on spikes. It cost me about $100 from Metal Supermarkets including the hole drilling.

The Sp10 is sitting on 3 BDR cones for now.

All of it sits on 4 inches of solid maple.

It is still a work in progress project.

I may be into a plinth again one day again but for now am very happy with this set up and I will have a pod built for the VPI arm.

Halcro are you still enjoying your set up?

To all - I would like recommendations on maybe using another material for the second pod recognizing I need to drill for the arm plate and spikes, and which of the three cartridges I have you feel would work best with either the ET and VPI arm. The Xv1 and Virtuoso cartridges are currently being re-tipped.

Is there a cartridge that would be a perfect match for the ET2.5?

Halcro and Raul - Thanks again and to all for recommendations on which of the cartridges to use.

Chris
Dear Raul and Halcro – thank you for the info.

Halcro excellent point on using a non-ferrous metal– I was so obsessed with anchoring the ET arm with weight that I overlooked that. Wish I had asked earlier. I hear no audible noise but my MM virtuoso cartridge would have told me more about any noise and it is being retipped.

Instead of making a second pod for the vpi arm I am now thinking of doing another ET pod in a non-ferrous metal. :)

Can’t tell you how much fun this has been – Like it has been said before there is so much real estate to work with - any arm can go on a pod and be switched in and out. Once you have a reliable drive system the possibilities and options are huge not being limited by plinth space and arms that will fit it.

I like all my cartridges with the ET arm but are there any sleepers I can try ?

Thank you again -Happy New Year to all
Dear Halcro/Raul
Some impressions - Having had this setup going for a few weeks now this is what I believe has happened in laymans terms. Bear with me.
We all know the needle in the groove moves back and forth, causes good vibrations to happen, which are then picked up by the stylus and sent down the phono cables along the tonearm to the rest of our gear to make beautiful music.
“Any” other vibrations that get introduced into play are bad, a problem, and we hear that as distortion in the music itself. Other vibrations come in from at least two directions. 1) Up from the platter into the cartridge, down the arm as well as 2) up from the plinth, up the arm pod where they meet with the other vibrations and cause the havoc we hear as distortion.
I believe I have reduced vibrations going up the platter with this setup - but MORE SO going up the arm - by isolating it more.
Further - A plinth is by definition any structure. I still have a plinth that my sp10 and arm are coupled to. Its the 4 inches of solid maple. It can be seen in this link.

http://www.canuckaudiomart.com/view_userimages.php?user_id=5181

Both sp10 and arm board are coupled by spikes – they are not on separate audio stands and the sp10 itself being plinthless.
The above is why I believe I had improvement in sound. A fantastic plinth that the DD and arm sit directly in or on will also reduce both direction vibrations but this is a much more complicated solution and costs a lot more $$ to implement to get to this level. I believe it also introduces colorations to the music itself as it has been said by you before based on the material used. This setup is much more simpler to actually implement – and for the average guy or gal “ me “ that has a good DD TT the isolating of the arm got me to a place that would have cost me much more $$ to implement the other way.
Does this reasoning make sense. It has been said before I realize but I wanted to put in simple words for others implementing this setup.
I wanted to also mention that having this setup reminds me of computers – Desktop versus laptops. Heavy plinths are like desktops and rarely moved if at all due to weight and their structure. This set up is portable and can be moved very easily. This is a big + as I have 3 systems in two physical locations. This has allowed me to enjoy my vinyl in multiple locations.
Final thought is that I have been experimenting with different feet for the sp10. Currently using mapleshade spikes. I find it very easy when setting up to first - put the arm where I want it to be and then 2) just move the sp10 into alignment rather than messing with the arm. It takes about 3-4 minutes to line up the ET arm once I have changed feet.
Thank you for bearing with me – appreciate the feedback.
Cheers - Chris
Hi guys - I think you will need to start a Victor TT owners thread soon.
Henry’s nude thread is partially responsible for ramping up my own vinyl lunatic phase. His Copernican thread was the real culprit however for me. Well lets call it 25% Nude – 75% Copernican.
Not sure whether to thank Henry or curse him. It did stop my speaker activity for a couple of years anyway.
Aienga - Great pictures. You look like you are having a lot of fun.

Mab33 – I can send you a document that shows how to construct a basic armpod. If you email me at bcpguy (@) bell (.) net

I will return an email with it. Remove parentheses when sending – I used to get a lot of spam.

Cheers Chris
I have said this before but will say it again. Thank u Henry for the inspiration behind your thread. Raul did mention Nude TT - in a couple of threads – but we never did see a picture of his setup. I learned more about resonances and vibrations during this project than I would have, I feel in any other way. So if anyone is a little bit curious, adventurous and have a vintage DD – go for it.

My SPMKII project has been through many versions. It is still not encased in a wrap around plinth, but it is now bolted to rigidly to the base (plinth) below it with the solid SS legs. The armpod I feel due to the 19 lbs involved provides a solid enough footing. Still, since the tonearm is unlikely to change, my next version will probably have the SS legs shortened, so that the armpod can be bolted directly to the base (plinth) as well. Similar in a way to the Verdier.
I don't believe your concerns about a 'floating' armpod are warranted?

Hi Henry – I have had this armpod for quite a while now. I am not concerned about floating. It hasn’t moved. This has to do with resonance and vibrations. I will change their patterns if I change to a rigid directly coupled armpod. I want to hear this change.

My SP10MKII is my PET project. Its role in my setup is all about learning from it. This cannot stop. Its the perfect candidate with the motor, bearing, spindle, platter so close to one another to learn more about resonances.

My DD setup is very flexible by design, so I can experiment with little effort really. I have a spare set of SS legs from version 3 with the points – the machinist will cut these and put threads in for me. The armpod has three threads for spiking or bolting. The bolts would come through the base (plinth) up into the armpod. No big deal. I want to see if I hear any differences. If I don’t like it, the armpod can be converted to free standing anytime – its reversible. No Risk , Nothing ventured, Nothing gained.

Fwiw - I have probably hit the limits with the SP10MKII and that is ok too. To me like I say in “Goldilocks and the three turntables “ on my system page. The SP10MKII sounds like it is just trying too hard to be accurate. I think it needs a little LESS CORRECTION if possible, and still be able to maintain STABILITY to make it better. Its a balance. Right now the correction piece is the Alpha. So if I have hit the limits with it. I am ok with that. Maybe one day I will pull off the cover underneath and have a look to see what can be done to better isolate what is in there. For what the setup cost $1500 - not including tonearm. I don’t think it can be beat in that price range. What does $1500 buy you today.

BTW – I recommend still that you isolate your victor and the armpods on a separate shelf. There will be a definite audible change. Easy enough to experiment with a piece of material and three or four footers.

Seeing that many audiophiles staunchly advocate the superiority of the big Micros over many SOTA new decks

Henry - Not familiar with the Micros - but I can tell you my Verdier raised the bar high – really high. Every day it amazes me more and more because I learn how to set it up better. I think this design has been around for a while too?

Cheers
I grabbed the slotted metal surround screen and held a magnet against it………..
This screen was magnetic steel!

Strange for a TT that is marketed with the word laboratory ?

Just kidding Henry – cool looking project. Looks like you are having a lot of fun.

I like Banquo’s use of the word “steampunk aesthetic” which if what we were looking at was all analog stuff would work for me. I have stared at too many digital circuit boards so I would be inclined to want to keep it under covers myself. From what I have heard about parts availability for that JVC I would want to prevent a setup that could cause an accident pulling of some wire ?

My recommendation holds to put the table and the armpods on a dedicated shelf supported by decouplers – the AT616’s come to mind. Even though you are on the wall already.....

Now I realize you are in beta trial mode and the setup is being tweaked but is that an old Canadian penny shimming the left armpod ? :^)

Cheers
Lewm - Halcro, Good on you that you did not agree with Ct to use compliant footers. We are not so far apart in our thinking.

Lewm/Halcro – please tell me how my SP10 TT setup is compliant ?

The SP10 is bolted into the base at both ends as is the 20 - lb armpod using a recessed bolt. Both the SP10 and the Armpod are easily converted to spikes.

Here is a pic for you.
http://cgim.audiogon.com/i/vs/i/f/1368395046.jpg

Interested in your comments on how to improve it. Its been a neglected TT for too long. I haven't got around to making an aesthetic base for it yet.

cheers.
The Gyro testing table had 6 cast iron legs. Five of them were height adjustable with wooden decoupling pads. The sixth leg had no adjustment and it directly coupled with the concrete floor.

Interesting

gave this more thought. My current version Sp10/Armpod testing TT is different from the Gyro as it is a rigid structure bolted into the base/plinth. No provisions for height or level adjustments. All height and leveling adjustments are done by the three adjustable AT-616 pneumatic footers under the base/plinth. In this case the actual TT system feet are these footers and I use three.

As noted earlier the ET2 tonearm has its own leveling system independent of these feet for final leveling. I level the platter as best as possible then the tonearm. My SS legs are acting as supports and are not the actual TT system feet. I would want to keep all four for stability and rigidity. Sounds to me like trying this out means changing out one of the AT-616's for an alpha leg ? The one under the tonearm in the pic ?
Hi Henry - just as you heard a profound difference with the change in TT support and spikes on your masonry wall shelf.
You will also hear more difference if you put a shelf just big enough to hold the TT and armpods on your existing shelf and decouple it further. I used the word decouple not compliant. But I did reference the at-616.
This is what I meant by a dedicated shelf and I was selfishly wondering what it would sound like to you.
Just curious. I thought it would be fun.

I have found many times in this hobby that going against your beliefs can lead to interesting results.
As an example my old VPI JMW 12 tonearm never sounded better than when it was sitting on an armpod which sat on 3 symposium roller block jrs.
With the sp10 setup I showed. I can go from a spiked setup to a bolted in one in a couple of hours.

btw - Have you seen Des' (Dgob) most recent setup?
His sp10 is also on the wall. Guess what lies under it ?

Once you have used the AT-616's its hard to let them go.
probably work great under big amps too.
Continue to have fun and inspire ...

Ecir38 - I just saw your pics. very cool too. nice looking project.

Cheers
Hi Lewm - you posted

Lewm - From the photo, and the two smaller inset photos which I cannot get my computer to enlarge for me, I think I see that the SP10 sits on spikes that are inverted such that their pointy tips are going up into the threaded bolt inserts on the bottom surface of the SP10 escutcheon. I don't see anything "compliant" in that.

Sorry for the confusion.
The photo was my feeble attempt at a type of collage showing the latest setup Version 5.
But the previous pic also showed the previous version SS legs which confused things.

Here is an updated pic.

http://cgim.audiogon.com/i/vs/i/f/1377781727.jpg

Version 4 is the bottom right pic.
Moving clockwise

Version 4.5 can be seen and then the latest Version 5.

Version four uses the pointy Solid Stainless Steel legs - the points are matched to the indentation of the cone footers They are heavy enough couple pounds each; add in the sp10 weight - and you easily indent the shelf they are placed on. In this case its a Mennonite made maple block (acting in the plinth role in this setup). The threaded flat holes at the other end of the SS pointy legs use a threaded joiner and that side gets screwed into the sp10 (in all versions) Various different materials can be wrapped around the threaded joiner before inserting and will affect sound.

The latest setup shown - bigger pic - has everything rigidly bolted in SP10 and Armpod. The SS legs in this version have threaded holes both ends (with threaded joiners at both ends for bolting into the sp10 and the black shelfl which in this set up, is now in the plinth role. The same maple block is no longer playing the plinth role and has been decoupled. My definition of a plinth (so no confusion with my post)the immediate base structure that holds all the TT system goods. :^)

You had posted earlier

Just by eyeball, your brass pod appears to be canted with respect to the SP10 platter surface. Probably an optical illusion.

isnt this whole hobby a sort of audible illusion ? Its probably the phone camera shot in low light but even if it was a mini version of a leaning tower a pisa it would not matter. The ET2 mounted on it has three leveling spikes and can be leveled on any surface. I have also had the top mounted Dynavector tonearm on this solid brass armpod. Now a tower of pisa would be a problem with it.

I'd like to mention a small but very significant point. I add some oil in the one hole at the top of the brass arm pod that is used to secure the ET2.

I hear the difference. I believe the oil works (with resonances) in a similar fashion to the actual damping trough on my reference ET 2.5 which is in my main room.

Cheers
Hi Richard - thanks for sharing those ideas.
If I understand you are using three leg supports under your triangle TT.

One is the "alpha" leg the leader for energy transmission, while the other two are slower followers? Are you not worried about energy in the plinth getting built up in those two areas with the pvc legs? Did you have a way to test this other than by listening?

My sp10mkII when being set up on my SS legs clearly shows a very heavy "weight bias" to the front left when viewed from the front - where start/stop switch is. Is the Sp10mkIII similar in weight distribution?

Would this mean the alpha leg goes on the heavier corner of your plinth ?

also I am curious.

Do you have an opinion on how your theory would work with a turntable that does not use a thrust bearing?
Air Bearing or Magnetic propulsion for levitation?

thanks
heavy "weight bias" to the front left when viewed from the front

maybe its the front right side now that I think about ..... its been too long.
Dover - Been around since the Mycenae age - the 16th to 12th centuries BC. Had I been around at that time I would have used it in my first TT.

I believe that Mr JC Verdier took the concept of the Platine Vintage Granito from this period. He just improved on the remote motor a bit. It used to be a human pedaling back then trying to keep speed stability.

“Granito is a material composed by little pieces of marble of very different origin agglomerated inside a mold with cement. Machined and polished. The resonance of the plinth with its suspension is about 5Hz and it is well absorbed by the air cavities."
Mr. JC Verdier

So there are different ways to go about this.
You can try to pass resonances through and hope it is one way. Or you can absorb them. The Platine has been scientifically analyzed, studied, and has passed the hardest test of all - time.

The way this Platine is made, I feel you could probably place it on any decent kitchen table and get good sound. My Verdier manual provides three options for installation. hard wearing furniture, wall mount, sandbox.
My Vintage Granito is on a solid maple platform which utilizes an elongated sandbox, on the concrete floor.

Not as pretty and "audiophile" as a vibraplane. But I don't have to worry about maintenance and adjustments due it going out of level and leaky bladders :^). I also don't feel a need to please other audiophiles....just myself. But I am my worst enemy. Glad I am a hobbyist and not in this business. Now with my other hobbies I can see getting into one of them on a business level later.
cheers
Richard – thanks for turning me onto the “alpha leg” :^)

I may try it with the sp10 setup later. One Stainless Steel leg and 3 PVC or other slower material legs. The JN Lenco uses 3 bear paws. I can’t even begin to imagine how many development hours Jean Nantais has into this table. It is very much about absorption of resonances and works well. So I am reluctant to try it here. Its 100 pounds doesn’t help. If JN is perusing here and sees this maybe he can attempt it. Something tells me he won't looking at a thread with a title that used the word Nude for any ideas :^)
Maybe I will email him.

Cheers
Thanks Dover. Sometimes I get ahead of myself when I get hold of an new idea. I tend to get a little giddy and feeling like a little kid. My version 5 will support 3 legs not a problem as they are screwed in on both sides. Project added to the overall list. Its no. 14 right behind no. 13 – Build wife new kitchen :^( I am thinking of outsourcing this project so I can play with my audio stuff more this winter.
I tried that droid application for magnetism.
curiosity got the better of me. Some "fun" observations.
I set the magnetism scale to the highest level so the bar would not peak.
Holding my phone in my left hand I took hold of a fridge magnet with my right hand.
I have a boatload of these now leftover from my ET2 magnetic damping experiments.
Sure enough as I brought the magnet closer it would register on the proximity graph.
Sort of like in the movies where they show crew in submarines with radar. As I came in closer the levels would go up.
So it does work - but how accurate is it ?

The sp10mkII first.
While holding it about an inch above the platter away from the cartridge it showed numbers in the 40's.
Turning the power supply on caused the number to jump to the 80's. Now the interesting part.
Pushing start reduced the number to the 40's again.

Lenco. unfortunately this test was ???? as the big magnet laden Dynavector tonearm sits on this table.
It started in the 40's and as I brought my phone toward the mid section of the Dynavector the scale would want to shoot way off.
Which leads me to ask myself. Dynavector is a well respected company. if they thought there was a problem with magnetism would they have built their tonearm to be joined with their cartridges ?

Verdier - the most surprising since it uses two very large magnets (shielded) for levitation. With my phone just above the big platter. The lowest levels observed in the teens and 20's.

Cheers
Chris, the increase in flux strength on the SP10 MK2 when stopped is due to the brake solenoid. Powered at stop, off when running.


two comments Richard

1) You confirmed that this app on my phone actually works. this is kind of cool.
2) I'm impressed with your findings.

I currently have an L07d in a thousand pieces.

I look forward to reading about how you fit an ET2 on that. :^)

But Boy, would I really like for someone like you to get yours hands on a thread drive design TT - NOT - a belt drive design that has been converted to thread.

I would love to read your impressions ...

Cheers
Stick your detector down there, and see what that does. Also, the thick platter gives distance from any possible problem up on the platter surface.

Hi Lewm
I fear for the life of my 2 year old Samsung Galaxy if I stuck it in there. a little curious but not that much.....
My daughter just expensed a new IPhone to me and my son a Samsung Note.
They both turn 19 on Friday this week - how could I refuse.
My phone now needs to last a couple more years.
btw - Drinking age in Ontario is 19 - maybe they will buy me a bottle of wine in return.

I suspect any levels I measured came from the cartridge - I was only six inches away from it.

I am however surprised at Dovers comment.

I dont think it is ideal to have electromagnetic fields floating around the cartridge, irrespective of what type of TT is used.

I mean considering he uses a Dynavector tonearm and preferred ET2 Magnetic damping. :^)

Cheers
Dover - imo each of us needs and has a reference point, a ground zero for this hobby and other things in life.
Without this anchor we become lost.
This ground zero is a little different for everyone.
For this reproduced in my room as far as source goes - my Studer deck playing 15 ips tapes is it for me.

here's why.

Before my Studer tech gave me back my tape machine he put on a tape that had different frequency notes on it.
He played each of them for one minute. It was rock solid in pitch. Never wavering. I wont get into its sonics here.

imo - a TT setup can come close, but will never be this good because other than all the many electro/mechanical "items" that need to be set up with the table, tonearm and cartridge - the record itself is so so flawed. oh you can try to setup things as best as possible for one record. But the next one will be different. I have hundreds in rows next to my listening chair that I randomly select from. What are you going to do.

So the record for the vinyl hobby imo is the Elephant in the Room.

Everyone loves to talk about their shiny TTs, tonearms and cartridges - the equipment. No one wants to talk about the source. Sorry for ranting on your thread Henry.


Dover
An example of this is the Verdier, where the motor is not strong, and addressing this should be a prerequisite before converting to thread drive.

imo - if you truly understood how this table worked you would not have made this comment. I guess JC Verdier does not know what he is doing. If I recall you discussed a Verdier in the past on this forum and it required the use of a setup bearing to run properly as it oscillated. Could it have been one of the many counterfeit ones around ? Its a very imitated and duplicated table. You need to be very careful. fwiw - I remember reading Syntax timeline testing the vintage Verdier - it was on the pass list. Cant remember the thread.

My Verdier and my other hobby tables are compared against my Studer in my own room real time - switching between the two.

So thats my Ground Zero Dover. Whats yours ?
Lewm - I've often wondered how the heck they can keep the thread from slipping down the smooth sides of the platter.

Lewm - Depending on my mood I do one of two things before a listening session in front of the Verdier.

I dance a little dance or
I get down on my knees and recite a short prayer in front of it.

So far the same piece of silk thread has been on their 9 months. It must be working.

cheers
Lewm - I'm sure it does; I've never seen the thread slip on any of those. That was part of my point to Dover. I thought also you were going to take issue with his idea that the Verdier needs a "stronger" motor. To my way of thinking, the Verdier is one of those in the "hi mass/lo torque" grouping of belt-drive turntables, a grouping that I regard highly for sonics and which includes the Walker Proscenium.

Lewm - as far as I can tell from pics of the Final TT - both the Final and Platone Verdier use thread but similarities end there. they are totally different executions - as different as an ESL and Dynamic Cone speaker. I am sure Dover will enlighten us more about his Final TT.

The Verdier is outside of the box as you can see from your dealers setup. It is like your childhood merry-go-round. Both the Platine Verdier and merry-go-round, once spinning need only occasional jolts / pulls from the motor/person to keep them going. The motor can be seen cycling on and off. If setup properly you can in fact turn the motor off and on for a short period and not notice the pitch change. Try that with your Dealers TT - I am very curious what you will hear.


Whatever one might think of the Verdier, I believe it was designed "as a whole", and the use of a relatively weak motor is intentional.

You are absolutely correct and the Verdier is not for everyone. But here is an most important consideration. We all hear about how powerful this or that one TT is; how torquey it is. The big motor. How quickly it gets to speed.
Well I used to race on land, water and snow. if you ask any veteran racer - you have a race to run - you must stay at a constant speed and there are alot of turns peaks and valleys on the race course. The first half of the race will be easier to navigate over while the last few turns will be tighter. The magic question.

if you had to choose -do you want better torque or brakes based on these conditions ?

The drivers/riders I knew including me would say that braking is more important. Now with a TT both are important but ask yourself how does your TT brake? Is there a motor involved, a brake pad that moves in and out. Does it need to attach to a spindle, belt or thread to have the ability to brake. Well the Verdier uses no motor for breaking. Braking is done with the replusive force of the magnets. It is natural physics dealing with the record behavior. Am not aware of any other TT like this plus it has no thrust bearing.
If you cut the thread while it is turning the platter turns for about 1/3 the time than when turning as a whole system connected to the motor pulley and just turning the motor off.

Also in keeping with Henry's Nudie thread the Verdier is as nude as you can be imo. This design also however leaves it open to audiophiles mods. The motor can be replaced with anything along with any kind of belt or thread. Once you replace the original motor and thread system you have defeated JC Verdier's well thought out design. Your dealing with a platter system that has braking action in it for a reason. Your on your own. What other TT motors have been built to work with this type of platter system. Hey - who am I to stop someone from putting on a TW motor, or a VPI one or lets see how about a Galibier one. Heres a good one. An sp10mkii set up beside with a special acrylic platter set at the right height so thread can be installed. hows that idea ? it comes from another Verdier owner. As long as you're happy I guess. Crazy hobby.

Cheers
Hi Chris,
The Verdier has always interested me....and as you say......Nude....but also Copernican in concept?
One question I have.........what is the material of the tonearm mounting pods?
They look like wood? And how are they fixed to the base? And how do you organise a different one when you get a different tonearm?

Hi Henry there is no wood here.

As you are genuinely interested please find attached some email answers in my direct correspondence with Mr. Verdier. Your question is answered below. I also have updated pics in my virtual page that show the setup clearly.

Imo - Mr Verdier is genuine; but understand he is also a manufacturer with a business to run. This is very evident in how he addresses my setup ball questions. My vintage granito model never came with one.

His email answers are un-modified.

I am now going fishing Henry. I will be using a Cordell CC Shad Green/Yellow to see if I can snag a lake trout.
Cheers
---------------------------------------------------------------------------------------------------------------------

Dear ,
Thank you for your message.
A gap of 1cm is absolutely normal.
Can you tell me more about your curious tone arm?
Please accept my best regards.
J.C.VERDIER

Dear
Many thanks for the compliments you send me.
Thanks for the photos where I can see in what high quality of environment my turntable is installed.
For sure your pleasure is my pleasure and we share it with numerous users of my material.
Please accept my very best regards.
J.C.VERDIER

Dear ,
Many thanks for your message.
Your base is made of GRANITO .
Granito is a material composed by little pieces of marble becoming from different origin agglomerated inside a mold with cement.
And of course machined and polished to obtain a good looking.

The resonance of the plinth with its suspension is about 5Hz and it is well absorbed by the air cavities.

Please accept my best regards.
J.C.VERDIER

Dear ,
The arm board is made of 2 different aluminum parts: a cubic part and a plate .
Hopping that you enjoy the listening of good records.
Please accept my best regards.
J.C.VERDIER

Dear ,
It is not easy for me to choose what is better for you.

So I will tell you another time what is told.
The possible installation of the ball was poposed to answer some customers who want to try to use the ball.
At the beginning it was only optional .
But later , to normalized the manufacturing , I included systematically the kit steel ball + ceramic past.
For my part I am not in favour of using the ball in accordance with the original design .
Probably you have this original design so you don't have the steel ball.

Don't worry about the stories of pirates , for sure some of them tried to attract customers by copies , because they are not able to conceive a product by themselves .
I don't have any of them in hands and I have no comment on their working.
For sure that should be easy if only a steel ball could let a turntable work properly!

Have a good day and enjoy your records .
Please accept my best regards.
J.C.VERDIER

Dear
Your 1Kg center weight clamp does not ask problems.
We could put till about 7Kg on the Platine Verdier before the magnets can't sustain the platter.
Please accept my best regards.
J.C.VERDIER
Hi Henry

I am now going fishing Henry. I will be using a Cordell CC Shad Green/Yellow to see if I can snag a lake trout

This pic is only a few days old

The hit was real.
The fight with 4lb pound line was real.
The landing and pics are real.
The emotional rush of - letting it go - was real.
Music gives me a similar rush. corny ? yah... but true.
Not a laker but only the 4th rainbow trout ever caught in this lake - must have come in as a baby from a smaller feeder lake.

another thought on the Verdier
Due to its low power requirements I intend to hook it up to my electric trolling motor battery once fishing season ends.
This way it gets used year round. I mean the battery not the TT. :^)

The new speaker project may delay things a bit but it will get done.

Continue to inspire.

Cheers
Halcro - steamed with ginger and shallots.

Sounds delicious Henry.

The authentic Canadian recipe is a shore lunch and it includes a small fire next to the water, beer mixed with specially seasoned flour in a pan.

Nice fish Dover. sounds like a great time was had by all.

Dover - Are you sure that trout is not fake, there are a lot around...

I now await to hear about your next adventure Dover - We have heard many mystical stories here about the great white's downunder.

Have you ever fished for
one?

I agree we do need to be careful of fake fish.
Pretty TT plinth Henry. Your architecture background is evident. This emperor definitely has new clothes. :^0
No longer Nude - can we expect a thread name change..hah hah. Your DV is riding really low or is that just the camera angle ?
Cheers
Henry,
If you will recall some years back in my experimentation I was running three tables side by side. I had each set up well on the concrete slab. Making nice music in their own different and unique way.

The test for structure feed back was to lower the needle on a still record un mute and crank the volume slowly. Then jump up and down beside each table searching out air pockets in the poured concrete. You're not a true audiophile until you have danced with your turntable.

I then brought out the bad boy. The Acutex 420 str. As naked a cartridge as there ever was. And I teamed it up with wiring that was unshielded except for its own poly covering. What followed was interesting.

The Jean Nantais Lenco exhibited a drone like noise. If I remember it was almost mechanical sounding. In talks with JN, I added an extra ground from the motor to the plate but to no avail. I was unwilling to make further mods to his table so that was the end of the road.

The Technics SP10 II made noise and required an extra ground. It was added from where the bolts goes into the casing and then into the preamp. This cleaned things up and it was quiet. Almost.

My former modded thread drive TNT/SDS drive with pneumatic suspension. An absolutely black silence, as black as the table itself. It revealed a veil in the music that the SP10 was making.

As we say - You don't know what's there, until you hear "it" removed.

So the 420str is a very good test cartridge - imo. If things pass with that cartridge they can only get better from there. Cheers

Have you tried testing the resonance characteristics of the granite pipe?

Granite pipe 8^0